Hi Matthew, and others,
".....music is, for the most part, unnatural."
Perhaps as unnatural as a park. The problem lies in the "most".

The essential elements in almost all traditional human music cultures are
rhythm, harmonic pitch relations, and pleasure. All these things are
processed subcortically and are much older than the human species.

There was quite some surprise when it was seen, by accident, that children
who are born without neocortex can enjoy music very much: